Partial Pressure of Product in Constant Volume Batch Reactor Calculator

Partial Pressure Formula:

\[ p_R = p_{R0} + \left(\frac{R}{\Delta n}\right) \times (\pi - \pi_0) \]

Initial Partial Pressure of Product R (p_R0):

Pascal

Stoichiometric Coefficient of Product (R):

Net Stoichiometric Coefficient (Δn):

Total Pressure (π):

Pascal

Initial Total Pressure (π₀):

Pascal

Partial Pressure of Product R (p_R): Pascal

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Partial Pressure of Product in Constant Volume Batch Reactor?

Definition: This calculator determines the partial pressure of a product in a constant volume batch reactor based on stoichiometric coefficients and pressure changes.

Purpose: It helps chemical engineers and researchers analyze reaction dynamics and predict product formation under constant volume conditions.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ p_R = p_{R0} + \left(\frac{R}{\Delta n}\right) \times (\pi - \pi_0) \]

Where:

\( p_R \) — Partial pressure of product R (Pascal)
\( p_{R0} \) — Initial partial pressure of product R (Pascal)
\( R \) — Stoichiometric coefficient of product
\( \Delta n \) — Net stoichiometric coefficient (products - reactants)
\( \pi \) — Total pressure (Pascal)
\( \pi_0 \) — Initial total pressure (Pascal)

Explanation: The formula calculates how the partial pressure of a product changes as the total pressure changes in a constant volume system.

3. Importance of Partial Pressure Calculation

Details: Understanding partial pressures is crucial for reaction kinetics, equilibrium calculations, and reactor design in chemical engineering.

4. Using the Calculator

Tips: Enter all required values in Pascal units. The net stoichiometric coefficient (Δn) must not be zero to avoid division by zero.

5. Frequently Asked Questions (FAQ)

Q1: What is a constant volume batch reactor?
A: A closed system where chemical reactions occur at constant volume, causing pressure changes as the reaction proceeds.

Q2: How do I determine the net stoichiometric coefficient?
A: Subtract the sum of reactant coefficients from the sum of product coefficients in the balanced chemical equation.

Q3: What if Δn equals zero?
A: The formula becomes undefined as there's no net change in moles of gas. The calculator will not compute a result in this case.

Q4: Can I use different pressure units?
A: The calculator uses Pascal, but you can convert from other units (1 atm = 101325 Pa, 1 bar = 100000 Pa).

Q5: How does temperature affect the calculation?
A: Temperature changes would require additional calculations using the ideal gas law, as this calculator assumes constant temperature.